{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "adverse event", "arguments": ["Treatment.Duration", "Treatment.Disorder", "Treatment.Freq", "Combination.Drug", "Subject.Gender", "Treatment.Drug", "Treatment.Time_elapsed", "Subject", "Subject.Population", "Subject.Disorder", "Treatment", "Subject.Race"]}], "input": "Two heroin addicts, aged 34 and 19 years, developed ballistic movements after intravenous heroin overdose."}
{"adverse event": [{"Treatment.Duration": "NAN", "Treatment.Disorder": "NAN", "Treatment.Freq": "NAN", "Combination.Drug": "NAN", "Subject.Gender": "NAN", "Treatment.Drug": "heroin", "Treatment.Time_elapsed": "NAN", "Subject": "Two heroin addicts, aged 34 and 19 years", "Subject.Population": "Two", "Subject.Disorder": "heroin addicts", "Treatment": "intravenous heroin overdose", "Subject.Race": "NAN"}]}